blessing



.miuns n. BLESSING, or ALBANY, NEW YORK.

CHECK-VALVE.

SPECIFICATION forming part ofdbetters Patent- No;-a281;43r%

Application filed April 14,1893. (No model.)

To all whom it may concern:

Be it known that .I, J nuns H. BLESSING, of the city and county of Albany, in the State of New Y ork, have invented certain new and useful Improvements in Check-Valves, of which the following is a specification.

My invention relates to improvements in the construction of strai ght-way check-valves and the objects of my improvements are to simplify the construction of such valves and to render the internal parts removable, so that those parts may be readily renewed and re-' paired without displacing the valve easing from its position in any pipes wherein the device is fixed. I attain these objects by means of the construction illustrated in the accompanying drawings, which form part of this specification, and in which- I Figure 1 is a side elevation of my valve; 2, a longitudinal section of the same; Fig. 3, a

transverse section at the line as x of Fig. 2; Fig. 4, a rear elevation of the removablesleeve, and Fig. 5 a detached side elevation of the clackvalve.

As illustrated in the drawings, A is'the valvercasing, provided with the branches a and a, for receiving,

induction and eduction pipes. The body of said casing is divided by a transverse partition or diaphragm, 13, arranged, as shown in Fig. 2, in an inclined position between the induction and eduction openings. tition is provided with an annular tongue, I), which is made concentric to t e passage b through said partition.

O is a removable valve-seat, provided with an opening, a, which corresponds to the passage I) through tht partition of the valve-nae ing, and with an ai .ilar groove, that is adapted to iit upon the annular tongue I), and which contains an elastic packing, c. The said removable seat and the mode of making a tight joint between it and the partition B will be found fully set forth and described in Letters,

Patent No. 27 2, 634 oi'the United States, granted to me on the'20th day of February, 1883.

' D is a removable sleeve, that is fitted into the body of the casing A, and has its lower. end cut to conform to the angle of the partition B of said casing, so that it will rest upon and bear against the upper face of the valve-seat C at respectively, the usual.

The said parthe opposite sides of said seat, as shown in The upper end of the sleeve conforms Fig. to the upper edge of the body of thecasing A, sb that-when the bonnet A of said casing is :screwed down to its place it (the bonnet A) will press against the upper end of the sleeve D and; hold the seatO securely in position. The sleeveD is provided with an opening, d, which corresponds to the eduction-opening a of the valve-casing, and it also has an opening, 'd, through which the arm of the clack-valve passes. On the outer side of said sleeve, at each side of. the opening d, the concave recesses d are formed, to receive the trunnions of the clack-valve, which recesses coact with said trunnionsto form the hinge-j oint required for such valves.

E is the clack-valve, provided with trunnions e; "Which-project from theopposite edges The several parts constructed in the man ner herein shown and described, and as I preferably make them so that all the parts for the same sires of valves will be interchangeable, the mode of assembling the said parts to complete the operative device is as follows: The valve-seat (3, containing the elastic packing c, is first fixed in place on the annular tongue I) of the partition Bin the Valve'easing A. The clack-valve E is insertedinto the sleeve D, so

that the trunnions e of said valve will engage in the recesses d. in said sleeve. The sleeve D and valve E are together inserted into the cylindrical body "of the valve-casing in such Ill2tllll6l. that the-i beveled end of said sleeve will bear fairly upon opposite sides of the up-- per face of the seat C. When this is accomplished, the trunnions e of the valve will be locked in position between the concave faces of the recesses (Z and the cylindrical body of the casing A in such manner that the valve E can vibrate with perfect freedom; but it cannot be displaced from its true position. The bonnet A is then SGI'QWGd'dOWIl 'on the upper end of the cylindrical body of the valve-casing A, and thereby the confinement of all the i nner parts of the device securely in thei rrespect- 'ive placesds effected.

it will readily be seen that all the inner parts of my device are so perfectly accessible that any renewment of or repairs to them may be efi'ected withoiit removing the casing A from its place in a line of pipe, and for that reason it possesses a manifest advantage over the ordinary form of valves, whoseseats are an inte gral part of the casing, so that when the seats become out or worn by use the casings are rendered useless-and must be discarded.

I claim as my invention-' 1'. In a straight-way valve, the combination, with a valveeasing, A, having a' transverse partition or diaphragm, B, arranged in an inclined position, as herein shown and described, and removable seat 0, fixed on said partition, of the removable sleeve 1), having its lower end made 'to conform to the angle of the par tition B, the said sleeve being adapted to se- V enre' the seat Cin'its place, asherein specified. 2. In a straight-way valve, the combination,

with a valve-easing, A, provided with a transverse partition or diaphragm, B, fixed in an angular position therein, as herein described, of the removable sleeve D, provided with reeesses d, and the clack-valve E, provided with trnnnions' (2, adapted to engage in the recesses d, as and for the purpose herein specified.

In a straight-way valve, the combination, with a removable sleeve provided with recesses or pockets, which are adapted to form one partof the hinge-joint on which the valve vibrates, of a clack-valve provided with trunnions adapted to engage in the recesses or pockets in the removable seat, in the manner and for the purpose herein specified.

JAB'IES H. BLESSING.

\Vitncsses: ADDISON Low, \VILLIAM' H. Low. v 

